老人性痴呆 ろうじんせいちほう Meanings Noun senile dementia See also: 老人性認知症 (ろうじんせいにんちしょう). Kanji 老 elderly. Read as ロウ. 人 person. Read as ジン. 性 nature. Read as セイ. 痴 foolish 呆 dumbfounded. Read as ホウ. Words containing 老人性痴呆 老人性痴呆症 (ろうじんせいちほうしょう) senile dementia Word lists Medicine Jinuma: Japanese Dictionary · Word lists